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1227 16Th Ave

Inner Sunset, SF 94122 1734004 2 units · 2 fl · 1926

This building has a higher-than-average number of open problems nearby. Few open issues; problems get fixed quickly. A reasonable bet for a smooth tenancy.

NOVs (7y) vs. neighborhood
Compared to a typical building in Inner Sunset
Above average
avg 1.1
3
FewerMore

This building has 3 novs (7y), above the Inner Sunset average of 1.1.

Rent & eviction protection

Is 1227 16Th Ave rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1926
2 or more units
2 units
Property type
Multi-Family Residential
Zoning
RM1
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units2
Floors2
Year built1926
Total area3,096 sq ft
Property typeMulti-Family Residential
Tax statusNone
Blocklot1734004
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Owner name
Lop Cho & Lui Sui Kuen Youn
Mailing address
1204 Carlisle Dr San Mateo CA 94402
Last sale
000000

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The two-unit residential building at 1227 16th Avenue in San Francisco's Inner Sunset neighborhood is a two-story flats and duplex structure built in 1926 and currently owned by Lop Cho & Lui Sui Kuen Youn. The property has experienced several significant maintenance issues over the past decade, with the most notable concerns occurring in 2018 when multiple violations were recorded in April relating to stair repairs, fire safety equipment, and smoke/carbon monoxide alarm requirements. These violations, stemming from complaints about wood fire escape stairs and possible structural issues, were ultimately resolved by July 2018 through the completion of repair work on the stairs. More recent improvements to the property include electrical upgrades in 2021-2022, with the installation of additional meters and a 200-amp upgrade, suggesting infrastructure modernization efforts by the current ownership.

Earlier concerns about the building's condition were documented in 2014, when there was a complaint regarding rotted stairs on the building's south side, and in 2016, when a tenant raised questions about unit legality, window security, exit accessibility, and rodent issues. The building's maintenance history shows attention to basic upkeep, including a reroofing project completed in 1991 and basement remodeling work from 1983. The property has also experienced some neighborhood-related issues as documented in 311 calls, primarily related to parking violations and street cleaning matters, though these are external to the building's structural and safety concerns. The most recent activity at the address includes parking enforcement requests from 2024, though these are not directly related to the building's condition or safety systems.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 1227 16Th Ave's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
59th percentile

Out of 1493 buildings in this neighborhood, 612 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
84%
No DBI
violation
16%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

Construction spend, owner's portfolio

Estimated permit value across all of this owner's buildings.

DBI complaint rate, owner's portfolio

Per-building complaint rate across the owner's portfolio.

Estimated permit spend (past 7 years)

Dollar value of permits pulled at this address — large recent spend can signal deferred-maintenance catch-up.

12-Month severity forecast
No violation 81.8%
Moderate concern 12.5%
Severe concern 5.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

1227 16Th Ave event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2022
Electrical Permit May 11
Two meter up grade to 200amp and a house meter
Issued

See all 2 events

Full history back to 2021 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 1227 16Th Ave apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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